| CINCHONA | Genus of South American trees whose dried bark yields quinine (8) |
| QUASSIA | Genus of South American trees whose bitter bark and wood has medicinal properties (7) |
| CINNAMON | Tropical Asian tree whose bark yields a spice |
| CASCARA | Shrub or small tree whose dried bark is used as a laxative (7) |
| SUNN | Leguminous plant of the East Indies whose inner bark yields a fibre used in making rope and sacking (4) |
| GENIPAPO | Tropical American tree whose unripe fruit yields a liquid used as a dye for tattoos (8) |
| ALLSPICE | Tropical American tree whose aromatic berries are used as a spice (8) |
| MAHOGANY | Any of various tropical American trees valued for their hard, reddish-brown wood (8) |
| DIVIDIVI | Small tropical American tree whose seed pods yield tannin; Caesalpinia coriaria (4-4) |
| REDCEDAR | Any of several coniferous North American trees, especially the juniper Juniperus virginiana or the cypress Thuja plicata (3,5) |
| KINKAJOU | South American tree-dwelling animal (8) |
| BRAZILNUT | South American tree whose triangular nuts have an edible kernel (6,3) |
| QUEBRACHO | South American tree whose wood is used in tanning (9) |
| ANGOSTURA | Bitter aromatic bark of two South American trees of the family Rutaceae, formerly used medicinally to reduce fever (9) |
| QUILLAIAS | Nurse surrounded by rolls of bark in South American trees |
| PETUNIA | Genus of South American plants cultivated for their funnel-shaped flowers |
| HIPPEASTRUM | Genus of South American bulb, cultivated for its large funnelshaped, typically red flowers (11) |
| CURARE | Black resin obtained from certain South American trees and used medicinally as a muscle relaxant and by South American Indians as an arrow poison |
| BRAZILNUTS | Edible seeds of some South American trees |
| COPAIBA | Resin from South American trees used in medicines, varnishes etc (7) |
